THIS IS A PRENATAL HEART LISTENER FROM *BEBE SOUNDS*. LISTEN TO YOUR BABY'S HEARTBEAT, HICCUPS & MOVEMENTS WHILE STILL IN THE WOMB.SO EASY TO USE, JUST TURN IT ON, PLUG IN THE EARPHONES AND PLACE THE LISTENER ON YOUR BELLY.WHAT A BEAUTIFUL INVENTION.HAS AN ADDITIONAL HEADPHONE JACK FOR YOU & YOUR PARTNER TO SHARE THE EXPERIENCE TOGETHER.